Saturday, November 7, 2009

Handmade Snooker Cues

carnivorous plants

carnivorous plants are considered a miracle of nature. Living in areas with lack of nutrients in the soil, they have developed unique to the plant world strategy for survival - the ability to catch and eat the live prey.

There are 450 species of plants belonging to 6 families, they can be found all over the world in a variety of habitats. Because these predators feed on plants mostly small insects, then they are called insectivores.

"pitchers" - trap

These plants use various tricks to lure prey. Edge and interior wall catching the leaves of some of them painted bright red, while others produce sweetener. In sarratssnii (Sarra cenia) on the neck of jug there are long hairs directed downward, not allowing an insect to get out. There are two possible explanations for why the production did not crash out of the trap: stupefying substance in the sugary liquid and quickly soporific prey, or overhanging lid, which confuses the insect.

Inside jug glands secrete enzymes that accelerate the dissolution of the flesh of an insect. But there are insects that can exist within such a jug. The larvae of the mosquito Wyeomyia smitbii actually live in a purple jug sarratsenii (Sarracenia purpurea), while adult insects can fly into and depart freely there. Spider Misumenops nepentbicola also often arranges his or her home.

slam trap

most famous example of such a trap is Venus flytrap (Dionaea muscipula). The trap is formed at the end of the leaf stalk acts as a hinge, and the sheet forms two prongs fringed lobes. On each of them contains sensitive hairs actuating the trap.

This occurs when the insect is disturbed by one of the hairs. But only when you touch a hair of the second base Plants received a sufficiently powerful electrical pulse, causing the trap shut.

trap closes very quickly - within a one-fifth of a second. Calling each other the teeth are closed tightly, and a small insect can even get out. Then the trap is opened Again, not to spend valuable digestive fluid in small, not very nutritious prey. But if you come across a large prey, the trap slowly closes for several hours until the victim is completely crushed.

sticky traps

sundew (Drosera it Drosophyllum), zhiryanki (Phiguicula) and rosolisty (Byblis) use adhesive substance. Once the insects settle on the leaves, they get stuck in a sugary liquid, stands out stipitate glands of the leaves. Trying to escape, the victim makes neighboring hairs to bend toward the source of motion and the result is even more firmly grasped.

suction traps

bladderwort (Utricularia and Polypompbolyx) grow in the ponds. They can either float freely or to take root. With their leaves hanging bubbles with opening, closing svobodnopodveshenny valve. Special glands pump out of the bubble, almost all the water that the valve remains tightly closed by the pressure of water outside. Then, the sweetener that attracts prey, and at the same time strengthens the valve. Setae directed prey to the valve, which instantly opens at the touch of a victim signal hairs. Pressure causes the valve to open inward, and extraction with water is sucked into a bubble. Further, the valve rapidly closes, the water is pumped out, and starts the digestion of the catch.

Traps-rachevni

In shallow water, close to hand, foot, often find Genlisea - small free-floating and slightly submerged outlet. Catching the leaves of this plant have a short petiole, divided into two leaving the water tube. The entire length of the spiral tube is slit along the inner surface, which is a series of inward hairs. Glands located on the outer edge, was isolated mucilage. Small aquatic organisms are directed hairs inside the trap, where they can no longer escape.

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